Communication terminal

ABSTRACT

Each of the cases C 1  and C 2  is formed in a plate. A sliding mechanism SL 1  is slidably coupled with the case C 1  and the case C 2 . A Felica circuit  24  is provided with an antenna ( 24   a ), and is contained in the case C 2 . A magnetic sensor  28  is contained in the case C 2 . A magnet  30  is contained in the case C 1 . A main LCD monitor  32  is attached to a top surface of the case C 1 . A CPU ( 22 ) determines whether an open position or a closed position from the output value of the magnetic sensor  28 . In the closed position, an assist mark ( 36 ) is displayed on the main LCD monitor  32  at a position of the antenna ( 24   a ) with respect to the main LCD monitor  32.

CROSS REFERENCE TO RELATED APPLICATIONS

The present application is a continuation of U.S. patent applicationSer. No. 12/671,120, filed on Mar. 2, 2010, which is the U.S. NationalStage application of PCT application PCT/JP2008/063927 filed on Jul. 28,2008, which claims priority under 35 U.S.C. §119 to Japanese PatentApplication No. 2007-197013 filed on Jul. 30, 2007, and the contents ofeach of these applications are incorporated herein by reference in theirentirety.

FIELD OF THE INVENTION

The present invention relates to a communication terminal. Morespecifically, the present invention relates to a communication terminalwhich performs communications by utilizing an antenna for Near FieldCommunication.

BACKGROUND

One example of an apparatus of such a kind is disclosed in aninstruction manual of W51SA by SANYO on page 274-278 opened on Feb. 9,2007 (non-patent document 1), for example. According to the prior art, acommunication terminal containing a mobile FeliCa chip configured on thebasis of a technique of a contactless IC card called “FeliCa”(registered trademark) has been spread. The mobile FeliCa chip isprovided with an antenna for making Near Field communication with areader/writer. The antenna is contained in the communication terminalsuch that good receiving sensitivity can be retained on one main surfaceof the communication terminal. Furthermore, when Near Fieldcommunication are made between the mobile FeliCa chip contained in thecommunication terminal and the reader/writer, the antenna for performingthe Near Field communication and the reader/writer have to be made closeto each other. Thus, on the one main surface of the mobile terminal, alogo mark representing the position where the antenna is contained isprovided.

However, in the prior art, the logo mark representing the position ofthe antenna is hidden under the communication terminal because theantenna and the reader/writer are made closer to each other. Thus, theuser could not clearly perceive the position of the antenna when themobile FeliCa chip contained in the communication terminal makes NearField communication with the reader/writer.

SUMMARY OF THE INVENTION

Therefore, it is a primary object of the present invention to provide anovel communication terminal.

Another object of the present invention is to provide a communicationterminal capable of clearly perceiving the position of an antenna.

The present invention employs following features in order to solve theabove-described problems. It should be noted that reference numerals andthe supplements inside the parentheses show one example of acorresponding relationship with the embodiments described later for easyunderstanding of the present invention, and do not limit the presentinvention.

A communication terminal according to a first invention comprises acase; a display attached to the case; an antenna for Near Fieldcommunication contained in the case; and an auxiliary displayer forsubsidiarily displaying a position of the antenna on the display.

In a communication terminal (10: reference numeral explainingcorresponding part in the embodiment, and the same is applicablehereafter) according to the first invention, a display apparatus (32,34) is attached to a case (C1, C2). An antenna (24 a) for Near FieldCommunication (24) is contained in the case. An auxiliary displayer(S15, S21, S35, S41, S49, S51, S59, S63, S69, S75, S81, S83)subsidiarily displays a position of the antenna on the display.

According to the first invention, the position of the antenna containedin the case is displayed on a display by the auxiliary displayer.Accordingly, the user can clearly perceive the position of the antennacontained in the case, and therefore, it is only necessary to make thecommunication terminal close to a reader/writer according to theauxiliary displayer.

A communication terminal according to a second invention depends fromthe first invention, and further comprises a determiner for determiningwhether or not the position of the antenna is included within a displayrange of the display, wherein the auxiliary displayer includes a firstauxiliary displayer for subsidiarily displaying a first assist markrepresenting the position of the antenna with respect to the display ina case that the determination result by the determiner is affirmativeand a second auxiliary displayer for subsidiarily displaying a secondassist mark representing the position of the antenna with respect to thecase on the display in a case that the determination result by thedeterminer is negative.

In a communication terminal according to the second invention, thedeterminer (S13, S29, S37, S45, S55, S61, S67, S79) determines whetheror not the position of the antenna is included within a display range ofthe display. A first auxiliary displayer (S21, S35, S41, S49, S75, S81)subsidiarily displays a first assist mark (36) representing the positionof the antenna with respect to the display in a case that thedetermination result by the determiner is affirmative. A secondauxiliary displayer (S15, S51, S59, S63, S69, S83) subsidiarily displaysa second assist mark (36, 38) representing the position of the antennawith respect to the case on the display in a case that the determinationresult by the determiner is negative.

According to the second invention, the auxiliary displayer switchescontents of the auxiliary display about the position of the antennaaccording to the determination result by the determiner. Accordingly,when the display displays the first assist mark, the first assist markrepresents the position of the antenna with respect to the display.Then, it is only necessary for the user to make the position of theantenna close to the reader/writer such that the position of the firstassist mark displayed on the display and the reader/writer aresuperposed with each other.

Furthermore, when the display represents the second assist mark, thesecond assist mark represents the position of the antenna with respectto the case. Then, it is only necessary for the user to make theposition of the antenna close to the reader/writer such that theposition of the case represented by the second assist mark and thereader/writer are superposed with each other based on the second assistmark.

A communication terminal according to a third invention depends from thefirst or the second invention, wherein the case only includes a firstcase, and the display is attached to one main surface of the first case,and the antenna is contained in the first case.

In the communication terminal according to the third invention, the caseonly includes the first case (C1), and the display is attached to onemain surface of the first case. The antenna is contained in the firstcase.

According to the third invention, the display is attached to theopposite side of the antenna. Accordingly, the display attached to theone main surface of the first case displays the position of the antennacontained in the first case by the first assist mark or the secondassist mark. Thus, the user can clearly perceive the position of theantenna with respect to the first case.

A communication terminal according to a fourth invention depends fromthe second invention, wherein the case includes the first case and asecond case, and further comprises a coupler for coupling the first caseand the second case such that a state of the first case with respect tothe second case can be shifted, a sensor for detecting a state of thefirst case with respect to the second case, and a position specifier forspecifying a position of the antenna with respect to the case on thebasis of an output from the sensor, wherein the determiner performs adetermination on the basis of the position specified by the positionspecifier.

In a communication terminal according to the fourth invention, the caseincludes the first case and a second case (C2). A coupler (SL, K, H1,H2) couples the first case and the second case such that a state of thefirst case with respect to the second case can be shifted. A sensor (28,30) detects a state of the first case with respect to the second case. Aposition specifier (22) specifies a position of the antenna with respectto the case on the basis of an output from the sensor. The determinationresult by the determiner performs a determination on the basis of theposition specified by the position specifier.

According to the fourth invention, the position of the antenna withrespect to the display is specified by the position specifier, so thatthe determiner outputs the determination result on the basis of thespecified position of the antenna. In addition, the auxiliary displayerdisplays the first assist mark or the second assist mark on the displayaccording to the determination result. Accordingly, even if the state ofthe first case with respect to the second case shifts by the coupler,the position of the antenna with respect to the display can be specifiedby the position specifier, so that the display displays the first assistmark or the second assist mark. Thus, the user can clearly perceive theposition of the antenna irrespective of the state of the first case withrespect to the second case.

A communication terminal according to a fifth invention depends from thefourth invention, wherein the position specifier repeatedly executesposition specifying processing, and the first auxiliary displayer movesthe first assist mark on the basis of a change of the position specifiedby the position specifier.

In the communication terminal according to the fifth invention, theposition specifier repeatedly executes the position specifyingprocessing. The first auxiliary displayer moves the first assist mark onthe basis of a change of the position specified by the positionspecifier.

According to the fifth invention, the display position of the firstassist mark displayed on the display is moved on the basis of the changeof the position specified by the position specifier. Accordingly, whenthe state of the first case with respect to the second case graduallyshifts, the position of the first assist mark to be displayed on thedisplay also gradually moves. Thus, the user can clearly perceive theposition of the antenna in correspondence with the position of the firstassist mark which is gradually moved.

A communication terminal according to a sixth invention depends from thefourth or the fifth invention, wherein the display includes a firstdisplay, the first display is attached to the one main surface of thefirst case, and the antenna is contained in the first case or the secondcase.

In a communication terminal according to the sixth invention, the firstdisplay (32) is included in the display. The first display is attachedto the one main surface of the first case. The antenna is contained inthe first case or the second case.

A communication terminal according to a seventh invention depends fromthe sixth invention, wherein the display further includes a seconddisplay, and the second display is attached to other main surface of thefirst case.

In a communication terminal according to the seventh invention, a seconddisplay (34) is further included in the display. The second display isattached to the other main surface of the first case.

According to the sixth to seventh inventions, the first display may beattached to the one main surface of the first case, and the antenna maybe contained in the first case. Alternatively, the first display may beattached to the one main surface of the first case, and the antenna maybe contained in the second case. Still alternatively, the second displaymay be contained in the other main surface of the first case.Accordingly, even if the antenna is contained in either the first caseor the second case, the first display or the second display can show theposition of the antenna. Thus, the user can clearly perceive theposition of the antenna irrespective of the antenna being contained inthe first case or the second case.

A communication terminal according to an eighth invention depends fromthe seventh invention, further comprises a character string displayerfor displaying on the second display a character string to prompt a userto confirm the first display.

In a communication terminal according to the eighth invention, acharacter string displayer (S33, S53) displays on the second display acharacter string to prompt a user to confirm the first display.

According to the eighth invention, the second display displays acharacter string prompting the user to confirm the first display otherthan the display of the first assist mark or the second assist mark.Accordingly, in a case that the position of the antenna cannot bedisplayed on the second display, the character string prompting the userto confirm the first display is displayed. Thus, the user can clearlyperceive the position of the antenna by confirming the first display.

A communication terminal according to a ninth invention depends from anyone of the forth to the eighth inventions, wherein the coupler includesa rotating mechanism of moving the first case with reference to a firstaxis vertical to a main surface of the second case in a state that thefirst case is stacked on the second case.

In a communication terminal according to the ninth invention, a rotatingmechanism (K) moves the first case with reference to a first axis (AX1)vertical to a main surface of the second case in a state that the firstcase is stacked on the second case. That is, the rotating mechanismrotates the first case with reference to the first axis.

According to the ninth invention, the first case and the second case arecoupled by the rotating mechanism.

A communication terminal according to a tenth invention depends from anyone of the fourth to eighth inventions, wherein the coupler includes asliding mechanism of sliding the first case in a state that the firstcase is stacked on the second case.

In a communication terminal according to the tenth invention, thesliding mechanism (SL) slides the first case in a state the first caseis stacked on the second case.

According to the tenth invention, the first case and the second case arecoupled by the sliding mechanism.

A communication terminal according to an eleventh invention depends fromany one of the fourth to ninth inventions, wherein the coupler includesa hinge mechanism of moving the first case with reference to a hingeshaft in a state that the first case is stacked on the second case.

In a communication terminal according to the eleventh invention, thehinge mechanism (H1, H2) moves the first case with reference to thehinge shaft (AX2, AX3). That is, the first case and the second case areopened and closed by the rotation with reference to the hinge shaft, andthe direction of the face of the first case is reversed.

According to the eleventh invention, the first case and the second caseare coupled by the hinge mechanism. In addition, the coupler maysimultaneously include the rotating mechanism and the hinge mechanism.

A communication terminal according to a twelfth invention depends fromthe eleventh invention, wherein the hinge mechanism includes a firsthinge mechanism of moving the first case with reference to a first hingeshaft being in parallel with a short side of a main surface of thesecond case. That is, the first case and the second case are opened andclosed by a rotation with reference to the hinge shaft.

In a communication terminal according to the twelfth invention, thefirst hinge mechanism (H1) moves the first case with reference to afirst hinge shaft (AX2) being in parallel with a short side of a mainsurface of the second case.

A communication terminal according to a thirteenth invention dependsfrom the twelfth invention, wherein the hinge mechanism further includesa second hinge mechanism of reversing a direction of a face of the firstcase by a rotation with reference to a second hinge shaft being verticalto the first hinge shaft and being in parallel with a long side of thefirst case.

In a communication terminal according to the thirteenth invention, asecond hinge mechanism (H2) reverses a direction of a face of the firstcase by a rotation with reference to a second hinge shaft (AX3) beingvertical to the first hinge shaft and being in parallel with a long sideof the first case.

According to the twelfth to thirteenth inventions, the hinge mechanismmoves the first case with reference to the first hinge shaft. Inaddition, the hinge mechanism may reverse the direction of the face ofthe first case by a rotation with reference to the second hinge shaft.

According to the present invention, the position of the antennacontained in the communication terminal can be clearly perceived, sothat it is possible for the mobile FeliCa chip to surely make Near Fieldcommunication with the reader/writer.

The above described objects and other objects, features, aspects andadvantages of the present invention will become more apparent from thefollowing detailed description of the present invention when taken inconjunction with the accompanying drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram showing a first embodiment of the presentinvention.

FIG. 2 (A) is a perspective view showing an appearance of the firstembodiment in a certain attitude, FIG. 2 (B) is a perspective viewshowing the appearance of the first embodiment in another attitude, andFIG. 2 (C) is a perspective view showing the appearance of the firstembodiment in a still another attitude.

FIG. 3(A) is a display example to be displayed on an LCD monitor, FIG.3(B) is another display example to be displayed on the LCD monitor, andFIG. 3(C) is a further another display example to be displayed on theLCD monitor.

FIG. 4 is a flowchart showing a part of an operation of a CPU applied tothe first embodiment.

FIG. 5 is a flowchart showing another part of the operation of the CPUapplied to the first embodiment.

FIG. 6(A) is a perspective view showing an appearance of a secondembodiment in a certain attitude, FIG. 6(B) is a perspective viewshowing the appearance of the second embodiment in another attitude,FIG. 6(C) is a perspective view showing the appearance of the secondembodiment in a still another attitude, and FIG. 6(D) is showing theappearance of the second embodiment in a further attitude.

FIG. 7 is a block diagram showing a third embodiment of the presentinvention.

FIG. 8(A) is a perspective view showing an appearance of the thirdembodiment in a certain attitude, FIG. 8(B) is a perspective viewshowing the appearance of the third embodiment in another attitude, FIG.8(C) is a perspective view showing the appearance of the thirdembodiment in a still another attitude.

FIG. 9(A) is a perspective view showing the appearance of the thirdembodiment in a further attitude, FIG. 9(B) is a perspective viewshowing the appearance of the third embodiment in a still furtherattitude, and FIG. 9(C) is a perspective view showing the appearance ofthe third embodiment in another attitude.

FIG. 10 is a perspective view showing the appearance of the thirdembodiment in still another attitude.

FIG. 11 is a display example to be displayed on a sub LCD monitorapplied to the third embodiment.

FIG. 12(A) is a perspective view showing the appearance of the thirdembodiment in a further attitude, and FIG. 12(B) is a perspective viewshowing the appearance of the third embodiment in a still furtherattitude.

FIG. 13 is a flowchart showing a part of an operation of the CPU appliedto the third embodiment.

FIG. 14 is a flowchart showing another part of the operation of the CPUapplied to the third embodiment.

FIG. 15(A) is a perspective view showing an appearance of a fourthembodiment in a certain attitude, FIG. 15(B) is a perspective viewshowing the appearance of the fourth embodiment in another attitude, andFIG. 15(C) is a perspective view showing the appearance of the fourthembodiment in a still another attitude.

FIG. 16 is a flowchart showing a part of an operation of the CPU appliedto the fourth embodiment.

FIG. 17 is a flowchart showing another part of the operation of the CPUapplied to the fourth embodiment.

FIG. 18 is a block diagram showing a fifth embodiment of the presentinvention.

FIG. 19(A) is a perspective view showing an appearance of the fifthembodiment in a certain attitude, FIG. 19(B) is a perspective viewshowing the appearance of the fifth embodiment in another attitude, andFIG. 19(C) is a perspective view showing the appearance of the fifthembodiment in a still another attitude.

FIG. 20 is a flowchart showing a part of an operation of the CPU appliedto the fifth embodiment.

DETAILED DESCRIPTION First Embodiment

Referring to FIG. 1, a mobile communication terminal 10 of a firstembodiment includes a key input device 26. When a call-out operation isperformed with the key input device 26, the CPU 22 controls atransmitter/receiver circuit 14 corresponding to a CDMA system to outputa call-out signal. The output call-out signal is emitted from theantenna 12, and sent to a telephone of an intended party through amobile communication network including base stations. When the intendedparty performs a call-in operation, a telephone-communication-allowablestate is established.

When a conversation end operation is performed with the key input device26 after shift to the telephone-communication-allowable state, the CPU22 controls the transmitter/receiver circuit 14 to send a conversationend signal to the intended party. After sending the conversation endsignal, the CPU 22 ends the conversation processing. In a case that aconversation end signal sent first from the intended party is receivedas well, the CPU 22 ends the conversation processing. Furthermore, if aconversation end signal is received not from the intended party but fromthe mobile communication network as well, the CPU 22 ends theconversation processing.

When a call-out signal from the intended party is received by theantenna 12 in a state that the entire system is activated, thetransmitter/receiver circuit 14 notifies the CPU 22 of the incoming. TheCPU 22 outputs calling source information described in the incoming callnotification from a main LCD monitor 32, and outputs an incoming calltone from an incoming call notifying speaker not shown. When a call-inoperation is performed with the key input device 26, atelephone-communication-allowable state is established.

In the state that a telephone communication can be made, followingprocessing is executed. A modulated audio signal (high frequency signal)sent from the intended party is received by the antenna 12. The receivedmodulated audio signal is subjected to demodulation processing anddecode processing by the transmitter/receiver circuit 14. The receivedvoice signal thus obtained is output from a speaker 18.

A voice signal to be transmitted which is received by a microphone 16 issubjected to encoding processing and modulation processing by thetransmitter/receiver circuit 14. The modulated audio signal thusgenerated is sent to the intended party by utilizing the antenna 12 asdescribed above.

A Felica circuit 24 is Near Field Communication circuit configured basedon a contactless IC card technique called “FeliCa” (registeredtrademark), and is provided with an antenna 24 a for making Near Fieldcommunication. By making the antenna 24 a and a reader/writer (notshown) close to each other in a state a Felica mode is selected with thekey input device 26, Near Field Communication is performed.

A magnetic sensor 28 detects magnetism of the magnetic force 30, andoutputs a value indicating 0-255 depending on the strength of thedetected magnetism.

Referring to FIG. 2 (A)-FIG. 2 (C), the mobile communication terminal 10has cases C1 and C2 each of which is formed in a plate. The cases C1 andC2 are approximately the same in thickness. The Felica circuit 24 iscontained in the case C2 such that the antenna 24 a retains goodreceiving sensitivity on a bottom surface of the case C2. The key inputdevice 26 is attached to the case C1 and the case C2 such that theoperation keys are exposed from a top surface of the case C1 and a topsurface of the case C2. The magnetic sensor 28 is contained in the caseC2. A magnet 30 is contained in the case C1 so as to be the closest tothe magnetic sensor 28 in a state shown in FIG. 2 (A). The main LCDmonitor 32 is attached to the case C1 such that the monitor screen isexposed on the top surface of the case C1.

That is, the main LCD monitor 32 is attached to the top surface of thecase C1, and the magnet 30 is contained in the case C1. Furthermore, themagnetic sensor 28 is contained in the case C2, and the Felica circuit24 is contained in the case C2. Then, the operation keys of the keyinput device 26 are attached to the top surfaces of the case C1 and thecase C2.

A sliding mechanism SL is provided at both ends in a width direction ofthe bottom surface of the case C1 and at both ends in the widthdirection of the top surface of the case C2. That is, the case C1 can beslid from a state it is stacked on the case C2 in a longitudinaldirection of the case C2. Furthermore, the sliding mechanism SL includesa sliding assist mechanism (not shown) to assist the sliding by a springmechanism.

The magnetic sensor 28 outputs 255 being a maximum value in the stateshown in FIG. 2 (A), and outputs 0 being a minimum value in the stateshown in FIG. 2 (B) and FIG. 2 (C). Then, the output value of themagnetic sensor 28 becomes small depending on a sliding amount whensliding is made from the FIG. 2 (A) state to the FIG. 2 (C) statethrough the FIG. 2 (B) state. That is, in the closed state shown in FIG.2 (A), the magnetic sensor 28 outputs the maximum value, and in the openstate shown in FIG. 2 (B) and FIG. 2 (C), the magnetic sensor 28 outputsthe minimum value.

The CPU 22 performs switching processing between the open state and theclosed state by comparing the output value of the magnetic force sensor28 and a threshold value. The threshold value is the output value of themagnetic force sensor 28 when sliding is made to a limit position wherethe position of the antenna 24 a is within a display range of the mainLCD monitor 32. For example, in a case that the threshold value is 128,a state where the output value of the magnetic sensor 28 is from 255being the maximum value to 128 shall be the closed state, and a statewhere the output value of the magnetic sensor 28 is from 127 to 0 beingthe minimum value shall be the opened position.

As described above, the Felica circuit 24 is contained in the case C2such that the antenna 24 a retains good receiving sensitivity on thebottom surface of the case C2. Accordingly, the Near Field Communicationutilizing the Felica circuit 24 is performed by making the bottomsurface of the case C2 close to the reader/writer. However, a usercannot perceive the position of the antenna 24 a when making the bottomsurface of the case C2 close to the reader/writer.

Thereupon, in a case that Near Field Communication utilizing the Felicacircuit 24 is performed, the position of the antenna 24 a contained inthe case C2 is displayed on the main LCD32 attached to the top surfaceof the case C1.

More specifically, referring to FIG. 2 (A)-FIG. 2 (C) and FIG. 3(A)-FIG.3(C), an assist mark 36 schematically represents a position of theantenna 24 a with respect to the main LCD monitor 32 or a position ofthe antenna 24 a with respect to the case C2 contained with the Felicacircuit 24. A schematic view 38 schematically shows the operation keysof the key input device 26 attached to the top surface of the case C2.

In the closed state shown in FIG. 2 (A), the opposite side of the bottomsurface of the case C2 where the receiving sensitivity of the antenna 24a is retained in good condition shall be the top surface of the case C1attached with the LCD monitor 32. Accordingly, within the display rangeof the main LCD monitor 32, the position of the antenna 24 a isincluded. Thus, the main LCD monitor 32 displays the assist mark 36 atthe position of the antenna 24 a with respect to the display range ofthe main LCD monitor 32. Here, a display example to be displayed on themain LCD monitor 32 in the closed state is shown in FIG. 3(A).

That is, on the opposite side of the assist mark 36 displayed on themain LCD monitor 32, the antenna 24 a exists. Then, the user is onlynecessary to make the surface where the receiving sensitivity of theantenna 24 a is retained in good condition, that is, the bottom surfaceof the case C2 close to the reader/writer such that the position of theassist mark 36 displayed on the main LCD monitor 32 and thereader/writer are superimposed with each other.

In the open state shown in FIG. 2 (B) and FIG. 2 (C), the opposite sideof the bottom surface of the case C2 where the receiving sensitivity ofthe antenna 24 a is retained in good condition becomes the top surfaceof the case C2. Accordingly, within the display range of the main LCDmonitor 32, the position of the antenna 24 a is not included. Thus, themain LCD monitor 32 displays the schematic view 38 of the top surface ofthe case C2, and further displays the assist mark 36 at the position ofthe antenna 24 a with respect to the top surface of the case C2. Here, adisplay example to be displayed on the main LCD monitor 32 in the openstate is shown in FIG. 3(B).

That is, on the opposite side of the top surface of the case C2corresponding to the schematic view 38 displayed on the main LCD monitor32, the antenna 24 a exists. Then, the user is only necessary to makethe surface where the receiving sensitivity of the antenna 24 a isretained in good condition, that is, the bottom surface of the case C2close to the reader/writer on the top surface of the case C2corresponding to the schematic view 38 displayed on the main LCD monitor32 such that the position indicated by the assist mark 36 and thereader/writer are superimposed with each other.

Furthermore, in a case of the closed state and a change in the outputvalue of the magnetic sensor 28, the CPU 22 detects a change of theposition of the antenna 24 a with respect to the main LCD monitor 32from the output value of the magnetic sensor 28, and moves the assistmark 36 on the basis of the detection result. For example, in a casethat the value of the magnetic sensor 28 continuously changes, theposition of the antenna 24 a with respect to the main LCD monitor 32similarly changes, so that the assist mark 36 is displayed on the mainLCD monitor 32 like animation.

That is, in a case that a sliding is made from the state shown in FIG. 2(A) to the state shown in FIG. 2 (C), the CPU 22 moves the assist mark36 from the dotted line position in the closed state to the solid lineposition as shown in the display example in FIG. 3(C). Thus, the user isonly necessary to make the surface where the receiving sensitivity ofthe antenna 24 a is retained in good condition, that is, the bottomsurface of the case C2 close to the reader/writer in correspondence withthe assist mark 36 gradually moved such that the position of the assistmark 36 displayed on the main LCD monitor 32 and the reader/writer aresuperimposed.

The CPU 22 executes a plurality of tasks including a Felica modecontrolling task shown in FIG. 4 and an assist controlling task shown inFIG. 5 in parallel. Here, the control program corresponding to thesetasks is stored in the flash memory 20, and the image data of the assistmark 36 and the schematic view 38 shown in FIG. 3(A)-FIG. 3(C) arefurther stored in the flash memory 20 and read from the flash memory 20in correspondence with the processing of the assist controlling task.

First, the Felica mode controlling task is explained. Referring to FIG.4, in a step S1, it is determined whether or not a Felica modeactivating operation is performed on the key input device 26. If “YES”here, the process proceeds to a step S3 for establishing a state thatthe Felica circuit 24 is able to be turned on, to activate the assistcontrolling task. If “NO” here, the process returns to the step S1 torepeat the processing in the step S1 until a Felica mode activatingoperation is performed on the key input device 26. In a following stepS5, the Felica circuit 24 is turned on so as to be able to perform NearField Communication utilizing the Felica circuit 24. In a next step S7,it is determined whether or not a Felica mode stopping operation isperformed on the key input device 26. If “NO” here, the process in thestep S7 is repetitively performed until the Felica mode stoppingoperation is performed on the key input device 26. If “YES” here, theprocess proceeds to a step S9 to turn the Felica circuit 24 off in orderto end the Near Field Communication utilizing the Felica circuit 24.Succeedingly, in a step S11, the Near Field Communication utilizing theFelica circuit 24 is ended, so that, the process returns to the step S1after ending the assist controlling task.

Next, the assist controlling task is explained. Referring to FIG. 5, ina step S13, it is determined whether or not the output value of themagnetic sensor 28 is equal to or more than the threshold value. If “NO”here, the output value of the magnetic sensor 28 is equal to or lessthan the threshold value, resulting in the open state shown in FIG. 2(B) and FIG. 2 (C). Then, the process proceeds to a step S15 to displaythe schematic view 38 of the top surface of the case C2 on the main LCDmonitor 32, and display the assist mark 36 at the position of theantenna 24 a with respect to the top surface of the case C2. In afollowing step S17, it is determined whether or not the output value ofthe magnetic sensor 28 changes. If “YES” here, the process returns tothe step S13 in order to determine whether or not the output of themagnetic sensor 28 is equal to or more than the threshold value. If “NO”here, the process returns to the step S15 to display the schematic view38 of the top surface of the case C2 on the main LCD monitor 32, and tocontinuously display the assist mark 36 at the position of the antenna24 a with respect to the top surface of the case C2.

Alternatively, if “YES” in the step S13, the output value of themagnetic sensor 28 is equal to or more than the threshold value,resulting in the closed state shown in FIG. 2 (A). Then, the processproceeds to a step S19 to specify the position of the Felica circuit 24with respect to the main LCD monitor 32 from the output value of themagnetic sensor 28. In a following step S21, the assist mark 36 isdisplayed at the position of the Felica circuit 24 specified in the stepS19 on the main LCD monitor 32.

In a further following step S23, it is determined whether or not theoutput value of the magnetic sensor 28 changes. If “YES” here, theprocess returns to the step S13 to determine again whether or not theoutput of the magnetic sensor 28 is equal to or more than the thresholdvalue. If “NO” here, the process returns to the step S19 to repeat theprocessing in the steps S19-S21, so that the assist mark 36 iscontinuously displayed at the position of the Felica circuit 24specified in the step S19.

Furthermore, in a case of the closed state, when the case C1 slides withrespect to the case C2, the processing in the step S13 and steps S19-S23are repeated. Thus, the position of the antenna 24 a with respect to themain LCD monitor 32 is changed as well, and thus the assist mark 36 isdisplayed on the main LCD monitor 32 like animation.

As understood from the above description, each of the case C1 and thecase C2 is formed in a plate. The main LCD monitor 32 is attached to thetop surface of the case C1. The Felica circuit 24 and the antenna 24 aare contained in the case C2. The sliding mechanism SL couples the caseC1 and the case C2 such that the state of the case C1 with respect tothe case C2 can be shifted. The magnetic sensor 28 detects the state ofthe case C1 with respect to the case C2. The processing in the step S13determines whether or not the antenna 24 a is included within thedisplay range of the main LCD monitor 32. If “YES” in the determinationin the step S13, the processing in the step S15 displays on the main LCDmonitor 32 the assist mark 36 indicating the position of the antenna 24a with respect to the main LCD monitor 32. If “NO” in the determinationin the step S13, the processing in the step S21 displays the schematicview 38 of the top surface of the case C2 on the main LCD monitor 32,and further displays the assist mark 36 at the position of the antenna24 a with respect to the top surface of the case C2. Thus, when theFelica circuit 24 makes Near Field Communication with the reader/writer,the position of the antenna can be clearly perceived.

It should be noted that in this first embodiment, the sliding mechanismSL is adopted, but as a second embodiment, a rotating mechanism K shownin FIG. 6(A)-FIG. 6(D) may be adopted in place of the sliding mechanismSL.

Furthermore, as a third embodiment, a hinge mechanism H1 or a hingemechanism H2 shown in FIG. 8(A)-FIG. 8(C), FIG. 9(A)-FIG. 9(C), FIG. 10and FIG. 12(A)-FIG. 12(B) may be adopted in place of the slidingmechanism SL. In addition, as a fourth embodiment, a rotating mechanismK and a hinge mechanism H2 shown in FIG. 15(A)-FIG. 15(C) may besimultaneously adopted for assistance in place of the sliding mechanismSL. Then, as a fifth embodiment, processing of an assist controllingtask may be performed in a straight mobile communication terminal 10configured only by a case C1 as shown in FIG. 19(A)-FIG. 19(C).

Next, the second embodiment, the third embodiment, the fourth embodimentand the fifth embodiment are explained.

Second Embodiment

In the second embodiment, the rotating mechanism K is adopted to be ofconfiguration as shown in FIG. 1 in place of the sliding mechanism SL.Furthermore, the second embodiment is the same as the first embodimentin the configuration of the mobile communication terminal in FIG. 1 andthe processing of Felica mode controlling task in FIG. 4 which are usedfor the explanation of the first embodiment, and therefore, in thedescription of the second embodiment, these drawings and theexplanations are omitted.

Referring to FIG. 6(A)-FIG. 6(D), the Felica circuit 24 is contained ina case C2 such that an antenna 24 a retains good receiving sensitivityon a bottom surface of the case C2. A key input device 26 is attached tothe case C2 such that the operation keys are exposed from the topsurface of the case C2. A magnetic sensor 28 is contained in the caseC2. The magnet 30 is contained in a case C1 so as to be closest to themagnetic sensor 28 in states of FIG. 6(A) and FIG. 6(B). A main LCDmonitor 32 is attached to the case C1 such that the monitor screen isexposed from the top surface of the case C1.

The rotating mechanism K is formed at one end in the longitudinaldirection of the outer surface of the case C2 as a rotating mechanism.The case C1 is coupled with the rotating mechanism K on the bottomsurface at the one end in the longitudinal direction. Furthermore, therotating mechanism K rotates the case C1 in a range of from 0degrees-360 degrees with reference to an axis AX1 vertical to the topsurface of the case C2 in a state that the case C1 is stacked on thecase C2. Thus, the case C1 can have a position with respect to the caseC2 as shown in FIG. 6(A)-FIG. 6(D).

The magnetic sensor 28 outputs 255 being a maximum value in the statesshown in FIG. 6(A) and FIG. 6(B), and outputs 0 being a minimum value inthe state shown in FIG. 6(D). Furthermore, in the state shown in FIG.6(C), the magnetic sensor 28 does not output the minimum value, but thisis regarded as an open state. Then, when a rotation is made from FIG.6(A) and FIG. 6(B) to FIG. 6(D), the output value of the magnetic sensor28 takes a smaller value depending on the rotation amount. That is, inthe closed state shown in FIG. 6(A) and FIG. 6(B), the magnetic sensor28 outputs the maximum value, and in the open state shown in FIG. 6(D),the magnetic sensor 28 outputs the minimum value.

In the second embodiment, a threshold value in switching process betweenthe open state and the closed state by the CPU 22 shall be an outputvalue of the magnetic force sensor 28 when rotating is made to a limitposition where the position of the antenna 24 a is within a displayrange of the main LCD monitor 32.

Referring to FIG. 6(A)-FIG. 6(D) and FIG. 3(A)-FIG. 3(B), in the secondembodiment, the schematic view 38 schematically shows the operation keysof the key input device 26 attached to the top surface of the case C2.

In the closed state shown in FIG. 6(A) and FIG. 6(B), the opposite sideof the bottom surface of the case C2 contained with the antenna 24 ashall be the top surface of the case C1 attached with the main LCDmonitor 32. Accordingly, the position of the antenna 24 a is includedwithin the display range of the main LCD monitor 32. Thus, similar tothe first embodiment, the main LCD monitor 32 displays the assist mark36 at the position of the antenna 24 a with respect to the display rangeof the main LCD monitor 32.

That is, on the opposite side of the assist mark 36 displayed on themain LCD monitor 32, the antenna 24 a exists. Thus, the user is onlynecessary to make the surface where the receiving sensitivity of theantenna 24 a is retained in good condition, that is, the bottom surfaceof the case C2 close to the reader/writer such that the position of theassist mark 36 displayed on the main LCD monitor 32 and thereader/writer are superimposed with each other.

In the open state shown in FIG. 6(C) and FIG. 6(D), the opposite side ofthe bottom surface of the case C2 where the receiving sensitivity of theantenna 24 a is retained in good condition is the top surface of thecase C2. Accordingly, the position of the antenna 24 a is not includedwithin the display range of the main LCD monitor 32. Thus, similar tothe first embodiment, the main LCD monitor 32 displays the schematicview 38 of the top surface of the case C2, and displays the assist mark36 at the position of the antenna 24 a with respect to the top surfaceof the case C2.

That is, on the opposite side of the top surface of the case C2corresponding to the schematic view 38 displayed on the main LCD monitor32, the antenna 24 a exists. Then, the user is only necessary to makethe surface where the receiving sensitivity of the antenna 24 a isretained in good condition, that is, the bottom surface of the case C2close to the reader/writer on the top surface of the case C2corresponding to the schematic view 38 displayed on the main LCD monitor32 such that the position indicated by the assist mark 36 and thereader/writer are superimposed with each other.

Furthermore, in a case of the closed state and a change in the outputvalue of the magnetic sensor 28, the CPU 22 detects the change of theposition of the antenna 24 a with respect to the main LCD monitor 32from the output value of the magnetic sensor 28, and moves the assistmark 36 on the basis of the detection result. For example, in a casethat the value of the magnetic sensor 28 continuously changes, theposition of the antenna 24 a with respect to the main LCD monitor 32similarly changes, so that the assist mark 36 is displayed on the mainLCD monitor 32 like animation.

That is, in a case that a rotation is made from the states in FIG. 6(A)and FIG. 6(B) to the states in FIG. 6(C) and FIG. 6(D), the position ofthe assist mark 36 is gradually moved in the closed state. Thus, theuser is only necessary to make the surface where the receivingsensitivity of the antenna 24 a is retained in good condition, that is,the bottom surface of the case C2 close to the reader/writer incorrespondence with the gradually moved position of the assist mark 36such that the position of the assist mark 36 displayed on the main LCDmonitor 32 and the reader/writer are superimposed with each other.

The CPU 22 executes a plurality of tasks in parallel including theFelica mode controlling task shown in FIG. 4 and the assist controllingtask shown in FIG. 5. Similar to the first embodiment, a control programcorresponding to these tasks is stored in the flash memory 20, and theimage data of the assist mark 36 and the schematic view 38 shown in FIG.3(A)-FIG. 3(C) are stored in the flash memory 20 and read from the flashmemory 20 in correspondence with the processing of the assistcontrolling task.

The processing of the Felica mode controlling task in the secondembodiment is the same as that of the first embodiment, and is thusomitted. The assist controlling task of the second embodiment isexplained. Referring to FIG. 5, in a step S13, it is determined whetheror not the output value of the magnetic sensor 28 is equal to or morethan the threshold value. If “NO” here, the output value of the magneticsensor 28 is equal to or less than the threshold value, resulting in theopen state shown in FIG. 6(C) and FIG. 6(D). Then, the process proceedsto a step S15 to display the schematic view 38 of the top surface of thecase C2 on the main LCD monitor 32, and display the assist mark 36 atthe position of the antenna 24 a with respect to the top surface of thecase C2. In a following step S17, it is determined whether or not theoutput value of the magnetic sensor 28 changes. If “YES” here, theprocess returns to the step S13 in order to determine again whether ornot the output of the magnetic sensor 28 is equal to or more than thethreshold value. If “NO” here, the process returns to the step S15 todisplay the schematic view 38 of the top surface of the case C2 on themain LCD monitor 32, and continuously display the assist mark 36 at theposition of the antenna 24 a with respect to the top surface of the caseC2.

Furthermore, if “YES” in the step S13, the output value of the magneticsensor 28 becomes equal to or more than the threshold value, resultingin the closed state shown in FIG. 6(A) and FIG. 6(B). Then, the processproceeds to a step S19 to specify the position of the Felica circuit 24with respect to the main LCD monitor 32 from the output value of themagnetic sensor 28. In a following step S21, the assist mark 36 isdisplayed at the position of the Felica circuit 24 specified in the stepS19 on the main LCD monitor 32.

In a following step S23, it is determined whether or not the outputvalue of the magnetic sensor 28 changes. If “YES” here, the processreturns to the step S13 in order to determine again whether or not theoutput of the magnetic sensor 28 is equal to or more than the thresholdvalue. If “NO” here, the process returns to the step S19 to repeat theprocessing in the steps S19-S21, so that the assist mark 36 iscontinuously displayed at the position of the Felica circuit 24specified in the step S19.

Furthermore, when the case C1 rotates with respect to the case C2 in theclosed state, the processing in the step S13 and the steps S19-S23 arerepeated. Thus, the position of the antenna 24 a with respect to themain LCD monitor 32 is also changed, so that the assist mark 36 isdisplayed on the main LCD monitor 32 like animation.

Third Embodiment

In a third embodiment, a hinge mechanism H1 or a hinge mechanism H2 isadopted in a configuration shown in FIG. 7 in place of the slidingmechanism SL. Furthermore, the third embodiment is the same as that ofthe Felica mode controlling task in FIG. 4 used in the explanation ofthe first embodiment, so that the explanation of FIG. 4 is omitted inthe explanation of the third embodiment.

Referring to FIG. 7, the mobile communication terminal 10 of the thirdembodiment has a sub LCD monitor 34 in addition to the mobilecommunication terminal 10 of the first embodiment.

Referring to FIG. 8(A)-FIG. 8(C), FIG. 9(A)-FIG. 9(C) and FIG. 10, inFIG. 8(A)-FIG. 8(C), the Felica circuit 24 is contained in a case C1such that the antenna 24 a retains good receiving sensitivity on anouter surface of the case C1. In FIG. 9(A)-FIG. 9(C), the Felica circuit24 is contained in the case C2 such that the antenna 24 a retains goodreceiving sensitivity on the outer surface of the case C2. The key inputdevice 26 is attached to the case C2 such that the operation keys areexposed from the inner surface of the case C2. The magnetic sensor 28 iscontained in the case C2. The magnet 30 is contained in the case C1 soas to be the closest to the magnetic sensor 28 in the states in FIG.8(A)-FIG. 8(C) and FIG. 9(A)-FIG. 9(C). The main LCD monitor 32 isattached to the case C1 such that the monitor screen is exposed from theinner surface of the case C2. The monitor screen of the sub LCD monitor34 is attached to the case C1 so as to be exposed from the outer surfacebeing opposed to the inner surface to which the main LCD monitor 32 ofthe case C1 is attached. Furthermore, in FIG. 8(A) and FIG. 9(A), thesub LCD monitor 34 is not attached to the case C1. The hinge mechanismH1 is formed at one end in the longitudinal direction of the innersurface of the case C2 as a hinge mechanism. The case C1 is coupled withthe hinge mechanism H1 on the side surface at the one end in thelongitudinal direction. Furthermore, the hinge mechanism H1 moves thecase C1 with reference to an axis AX2 being in parallel with a shortside of the inner surface of the case C2 in a state that the case C1 isstacked on the case C2. That is, the case C1 and the case C2 is openedand closed according to a rotation taking the axis AX2 as a reference.Thus, the case C1 can be positioned with respect to the case C2 shown inFIG. 8(A)-FIG. 8(C), FIG. 9(A)-FIG. 9(C) and FIG. 10.

The magnetic sensor 28 outputs 255 being a maximum value in the statesshown in FIG. 8(A)-FIG. 8(C) and FIG. 9(A)-FIG. 9(C), and outputs 0being a minimum value in the state shown in FIG. 10. That is, in theclosed state shown in FIG. 8(A)-FIG. 8(C) and FIG. 9(A)-FIG. 9(C), themagnetic sensor 28 outputs the maximum value, and in the open stateshown in FIG. 10, the magnetic sensor 28 outputs the minimum value.

The switching processing between the open state and the closed state bythe CPU 22 is performed depending on not the threshold value adopted inthe first embodiment and second embodiment, but on whether or not theoutput of the magnetic sensor 28 is the maximum value.

The sub LCD monitor 34 can display the assist mark 36, the schematicview 38 and the character string.

Referring to FIG. 8(A)-FIG. 8(C), FIG. 9(A)-FIG. 9(C), FIG. 10 and FIG.3(A)-FIG. 3(B), in the third embodiment, the schematic view 38schematically represents the operation keys of the key input device 26attached to the inner surface of the case C2. Furthermore, in FIG. 8(A)and FIG. 9(A), the sub LCD monitor 34 is not attached to the case C1.

In the closed state shown in FIG. 8(A)-FIG. 8(C), the opposite surfaceof the outer surface of the case C1 where the receiving sensitivity ofthe antenna 24 a is retained in good condition becomes the inner surfaceof the case C1 to which the main LCD monitor 32 is attached.Accordingly, the position of the antenna 24 a is included in the displayrange of the main LCD monitor 32. However, it is impossible to displaythe main LCD monitor 32 in the closed state. Thus, the sub LCD monitor34 is attached to the outer surface of the case 1. Furthermore, anattaching position of the sub LCD monitor 34 is shown in FIG. 8(C). Thesub LCD monitor 34 displays a character string prompting the user toconfirm the main LCD monitor 32. A display example of the characterstring prompting the user to confirm the main LCD monitor 32 is shown inFIG. 11. That is, the user is only necessary to shift to the open stateshown in FIG. 10 according to the character string displayed on the subLCD monitor 34 and confirm the main LCD monitor 32.

In the closed state shown in FIG. 9(A)-FIG. 9(C), the opposite side ofthe outer surface of the case C2 where the receiving sensitivity of theantenna 24 a is retained in good condition shall be the outer surface ofthe case C1 attached with the sub LCD monitor 34. Accordingly, theposition of the antenna 24 a is included within the display range of thesub LCD monitor 34. Thus, similar to FIG. 8(C), the sub LCD monitor 34is attached to the outer surface of the case 1. Furthermore, theattaching position of the sub LCD monitor 34 is as shown in FIG. 9(C).The sub LCD monitor 34 displays the assist mark 36 at the position ofthe antenna 24 a with respect to the display range of the main LCDmonitor 32.

That is, on the opposite side of the assist mark 36 displayed on the subLCD monitor 34, the antenna 24 a exists. Thus, the user is onlynecessary to make the surface where the receiving sensitivity of theantenna 24 a is retained in good condition, that is, the outer surfaceof the case C2 close to the reader/writer such that the position of theassist mark 36 displayed on the sub LCD monitor 34 and the reader/writerare superimposed with each other.

In the open state shown in FIG. 10, the displayed content of the mainLCD monitor 32 is different depending on the surface where the receivingsensitivity of the antenna 24 a is retained in good condition.

In a case that the surface where the receiving sensitivity of theantenna 24 a is retained in good condition is the outer surface of thecase C1, the opposite side of the outer surface of the case C1 where thereceiving sensitivity of the antenna 24 a is retained in good conditionis the inner surface of the case C1 attached with the main LCD monitor32. Accordingly, within the display range of the main LCD monitor 32,the position of the antenna 24 a is included. Thus, similar to the firstembodiment, the main LCD monitor 32 displays the assist mark 36 at theposition of the antenna 24 a with respect to the display range of themain LCD monitor 32.

That is, on the opposite side of the assist mark 36 displayed on themain LCD monitor 32, the antenna 24 a exists. Thus, the user is onlynecessary to make the surface where the receiving sensitivity of theantenna 24 a is retained in good condition, that is, the outer surfaceof the case C1 close to the reader/writer such that the position of theassist mark 36 displayed on the main LCD monitor 32 and thereader/writer are superimposed with each other.

In a case that the surface where the receiving sensitivity of theantenna 24 a is retained in good condition is the outer surface of thecase C2, the opposite surface of the outer surface of the case C2 wherethe receiving sensitivity of the antenna 24 a retains in good conditionbecomes the inner surface of the case C2. Accordingly, within thedisplay range of the main LCD monitor 32, the position of the antenna 24a is not included. Thus, the main LCD monitor 32 displays the schematicview 38 of the inner surface of the case C2, and further displays theassist mark 36 at the position of the antenna 24 a with respect to theinner surface of the case C2.

In addition, in the open state shown in FIG. 10, in a case that the subLCD monitor 34 is attached to the outer surface of the case C1, the subLCD monitor 34 displays a character string prompting the user to confirmthe main LCD monitor 32. That is, the user is only necessary to shift tothe open state shown in FIG. 10 according to the character stringdisplayed on the sub LCD monitor 34 and confirm the main LCD monitor 32.

Referring to FIG. 12(A) and FIG. 12(B), the hinge mechanism H2 isprovided with an axis AX3 in addition to the axis AX2. The Felicacircuit 24 contained in the case C2 such that the good receivingsensitivity can be retained on the outer surface of the case C2.

The hinge mechanism H2 moves the case C1 with reference to the axis AX2in parallel with the short side of the inner surface of the case C2 in astate that the case C1 is stacked on the case C2, and rotates the caseC1 with reference to the axis AX3 being vertical with the axis AX2 andin parallel with the inner surface of the case C1. That is, thedirection of the face of the case C1 is reversed by a rotation withreference to the axis AX3. Thus, the case C1 can be positioned withrespect to the case C2 as shown in FIG. 12(A) and FIG. 12(B) as well.

If the hinge mechanism H2 is adopted, the magnetic sensor 28 outputs 255being the maximum value in the states shown in FIG. 8(A)-FIG. 8(C), FIG.9(A)-FIG. 9(C) and FIG. 12(B), and outputs 0 being the minimum value inthe states shown in FIG. 10 and FIG. 12(A). That is, in the closed stateshown in FIG. 8(A)-FIG. 8(C), FIG. 9(A)-FIG. 9(C) and FIG. 12(B), themagnetic sensor 28 outputs the maximum value, and in the open stateshown in FIG. 12(A), the magnetic sensor 28 outputs the minimum value.

In a state during the assist controlling shown in FIG. 12(A) and FIG.12(B), the displayed contents may be exchanged between the sub LCDmonitor 34 and the main LCD monitor 32.

Accordingly, in the open state shown in FIG. 12(A), in a case that thesurface where the receiving sensitivity of the antenna 24 a is retainedin good condition is the outer surface of the case C2, the opposite sideof the outer surface of the case C2 where the receiving sensitivity ofthe antenna 24 a retains in good condition becomes the inner surface ofthe case C2. Accordingly, the position of the antenna 24 a is notincluded within the display range of the sub LCD monitor 34. Thus, thesub LCD monitor 34 displays the schematic view 38 of the inner surfaceof the case C2, and further displays the assist mark 36 at the positionof the antenna 24 a with respect to the inner surface of the case C2.Furthermore, the main LCD monitor 32 displays a character stringprompting the user to confirm the sub LCD monitor 34.

In addition, in the closed state shown in FIG. 12(B), the opposite sideof the outer surface of the case C2 where the receiving sensitivity ofthe antenna 24 a is retained in good condition shall be the outersurface of the case C1 attached with the main LCD monitor 32.Accordingly, the position of the antenna 24 a is within the displayrange of the main LCD monitor 32. Thus, the main LCD monitor 32 displaysthe assist mark 36 at the position of the antenna 24 a with respect tothe display range of the main LCD monitor 32.

The CPU 22 executes in parallel a plurality of tasks including theFelica mode controlling task shown in FIG. 4 and the assist controllingtask shown in FIG. 13 and FIG. 14. Here, the control programcorresponding to these tasks is stored in the flash memory 20, and theimage data of the assist mark 36 and the schematic view 38 which areshown in FIG. 3(A)-FIG. 3(C) and the letter data of the character stringshown in FIG. 11 are stored in the flash memory 20, and read from theflash memory 20 according to the processing in the assist controllingtask.

The processing of the Felica mode controlling task in the thirdembodiment is the same as the first embodiment, and thus omitted.Referring to FIG. 13 and FIG. 14, the processing of the assistcontrolling task is explained. In a step S25, it is determined whetheror not the Felica circuit 24 is contained in the case C1. The result ofthe determination is “YES” with respect to the states in FIG. 8(A)-FIG.8(C) and FIG. 10, and is “NO” with respect to the states in FIG.9(A)-FIG. 9(C), FIG. 10 and FIG. 12(A)-FIG. 12(B). FIG. 10 is includedin both of the determinations “YES” and “NO”.

If “YES” in the step S25, the process proceeds to a step S27 todetermine whether or not there is the sub LCD monitor 34. The result ofthe determination indicates “YES” with respect to the states shown inFIG. 8(B), FIG. 8(C) and FIG. 10, and indicates “NO” with respect to thestates shown in FIG. 8(A) and FIG. 10. Here, FIG. 10 is included both ofthe determinations of “YES” and “NO”.

If “YES” in the step S27, the process proceeds to a step S29 todetermine whether or not the output value of the magnetic sensor 28 isthe maximum value. If “YES” here, the closed state shown in FIG. 8(B) orFIG. 8(C) is determined, and the process proceeds to a step S31. Then,it is determined that it is impossible to display the assist mark 36 onthe main LCD monitor 32 in the closed state. If “NO” in the step S29,the open state shown in FIG. 10 is determined, so that the processproceeds to a step S35. Then, the assist mark 36 is displayed on themain LCD monitor 32 at the position of the antenna 24 a with respect tothe main LCD monitor 32.

In addition, after completion of the processing in the step S31 or thestep S35, the process proceeds to a step S33 to make the sub LCD monitor34 display a character string prompting the user to confirm the main LCDmonitor 32. Then, after completion of the processing in the step S33,the process returns to the step S29 in order to determine again whetheror not the output of the magnetic sensor 28 is the maximum value.

Furthermore, if “NO” in the step S27, the process proceeds to a step S37to determine whether or not the output value of the magnetic sensor 28is the maximum value. If “YES” here, the closed state shown in FIG. 8(A)is determined, and the process proceeds to a step S39. Then, it isdetermined that it is impossible to display the assist mark 36 on themain LCD monitor 32 in the closed state. If “NO” in the step S37, theopen state shown in FIG. 10 is determined, and therefore, the processproceeds to a step S41. Then, the assist mark 36 is displayed on themain LCD monitor 32 at the position of the antenna 24 a with respect tothe main LCD monitor 32.

In addition, after completion of the processing in the step S39 or thestep S41, the process returns to the step S37 in order to determineagain whether or not the output of the magnetic sensor 28 is the maximumvalue.

Furthermore, If “NO” in the step S25, the CPU 22 proceeds to a step S43to determine whether or not there is the sub LCD monitor 34. Thedetermination result indicates “YES” with respect to the states shown inFIG. 9(B), FIG. 9(C), FIG. 10 and FIG. 12(A)-FIG. 12(B), and indicates“NO” with respect to the states shown in FIG. 9(A) and FIG. 10. Here,FIG. 10 is included in both of the determinations of “YES” and “NO”.

If “YES” in the step S43, the process proceeds to a step S45 todetermine whether or not the output value of the magnetic sensor 28 isthe maximum value. If “YES” here, the closed state shown in FIG.9(B)-FIG. 9(C) and FIG. 12(B) is determined, so that the processproceeds to a step S47. Then, it is determined that it is impossible todisplay the assist mark 36 on the main LCD monitor 32 and the sub LCDmonitor 34 in the closed state. In a following step S49, in the statesshown in FIG. 9(B)-FIG. 9(C), on the sub LCD monitor 34, the assist mark36 is displayed at the position of the antenna 24 a with respect to thesub LCD monitor 34. In the state shown in FIG. 12(B), the assist mark 36is displayed on the main LCD monitor 32 at the position of the antenna24 a with respect to the main LCD monitor 32.

If “NO” in the step S45, the open state shown in FIG. 10 and FIG. 12(A)is determined, so that the process proceeds to a step S51. Then, in thestate shown in FIG. 10, the schematic view 38 of the inner surface ofthe case C2 is displayed on the main LCD monitor 32, and the assist mark36 is displayed at the position of the antenna 24 a with respect to theinner surface of the case C2. In the state shown in FIG. 12(A), theschematic view 38 of the inner surface of the case C2 is displayed onthe sub LCD monitor 34, and the assist mark 36 is further displayed atthe position of the antenna 24 a with respect to the inner surface ofthe case C2.

Successively, in a step S53, in the state shown in FIG. 10, a characterstring prompting the user to confirm the main LCD monitor 32 isdisplayed on the sub LCD monitor 34. In the state shown in FIG. 12(A), acharacter string prompting the user to confirm the sub LCD monitor 34 isdisplayed on the main LCD monitor 32.

In addition, after completion of the processing in the step S49 or thestep S53, the process returns to the step S45 in order to determineagain whether or not the output of the magnetic sensor 28 is the maximumvalue.

Furthermore, if “NO” in the step S43, the process proceeds to a step S55to determine whether or not the output value of the magnetic sensor 28is the maximum value. If “YES” here, the closed state shown in FIG. 9(A)is determined, and the process proceeds to a step S57. Then, it isdetermined that it is impossible to display the assist mark 36 on themain LCD monitor 32 in the closed state. If “NO” in the step S55, theopen state shown in FIG. 10 is determined, and the process proceeds to astep S59. Then, the schematic view 38 of the inner surface of the caseC2 is displayed on the main LCD monitor 32, and the assist mark 36 isdisplayed at the position of the antenna 24 a with respect to the innersurface of the case C2. In addition, after completion of the processingin the step S57 or the step S59, the process returns to the step S55 inorder to determine whether or not the output of the magnetic sensor 28is the maximum value.

It should be noted that in the third embodiment, the hinge mechanism H1or hinge mechanism H2 may be formed at the other end in the longitudinaldirection of the inner surface of the case C2, and the case C1 may becoupled with the hinge mechanism H1 or the hinge mechanism H2 on theside surface at the other end in the longitudinal direction.

Fourth Embodiment

pare simultaneously adopted in place of the sliding mechanism SL. Also,the fourth embodiment is the same in the processing of the Felica modecontrolling task in FIG. 4 used for explanation of the first embodiment,the configuration of the mobile communication terminal 10 in FIG. 7 usedfor explanation of the third embodiment, and the display example in FIG.11, and therefore, in the explanation of the fourth embodiment, thedrawings and the description therefor are omitted.

Referring to FIG. 9(A)-FIG. 9(C), FIG. 10, FIG. 12(A)-FIG. 12(B) andFIG. 15(A)-FIG. 15(C), in FIG. 9(A)-FIG. 9(C) and FIG. 10, assuming thatthe hinge mechanism H2 is adopted in place of the hinge mechanism H1,and the rotating mechanism K is further provided. Then, in FIG.12(A)-FIG. 12(B), assuming that the rotating mechanism K is furtherprovided. The Felica circuit 24 is contained in the case C2 such thatthe antenna 24 a retains a good receiving sensitivity on the outersurface of the case C2.

The key input device 26 is attached to the case C2 such that theoperation keys are exposed from the inner surface of the case C2. Themagnetic sensor 28 is contained in the case C2. The magnet 30 iscontained in the case C1 so as to be the closest to the magnetic sensor28 in the states in FIG. 9(A)-FIG. 9(C). The main LCD monitor 32 isattached to the case C1 such that the monitor screen is exposed from theinner surface of the case C1.

The sub LCD monitor 34 is attached to the case C1 such that the monitorscreen is exposed from the outer surface opposite to the inner surfaceto which the main LCD monitor 32 of the case C1 is attached.Furthermore, in FIG. 9(A) and FIG. 15(A), the sub LCD monitor 34 is notattached to the case C1.

The rotating mechanism K and the hinge mechanism H1 are configured to becoupled with each other at one end in a longitudinal direction of theinner surface of the case C2. Furthermore, the hinge mechanism H2 iscoupled with the rotating mechanism K such that an axis AX1 crosses withan intersection point of an axis AX 2 and an axis AX 3.

The case C1 is coupled with the hinge mechanism H2 on a side surface atone end in the longitudinal direction. Furthermore, the rotatingmechanism K and the hinge mechanism H2 rotates the case C1 in a range offrom 0 degrees-360 degrees with reference to the axis AX1 vertical tothe inner surface of the case C2 in a state that the case C1 is stackedon the case C2, further moves the case C1 with reference to the axis AX2in parallel with the short side of the inner surface of the case C2, androtates the case C1 with reference the axis AX3 being vertical to theaxis AX2 and being in parallel with the inner surface of the case C1.That is, the first case and the second case are opened and closed by arotation with reference to the axis AX2. In addition, by a rotation withreference to the axis AX3, the direction of the face of the first caseis reversed. Thus, in the fourth embodiment, in addition to the statesin FIG. 9(A)-FIG. 9(C), FIG. 10, FIG. 12(A)-FIG. 12(B), the states shownin FIG. 15(A)-FIG. 15(C) can be positioned.

The magnetic sensor 28 outputs 255 being a maximum value in states shownin FIG. 9(A)-FIG. 9(C) and FIG. 12(B), and outputs 0 being a minimumvalue in states shown in FIG. 10 and FIG. 12(A). That is, in the closedstate shown in FIG. 9(A)-FIG. 9(C) and FIG. 12(B), the magnetic sensor28 outputs the maximum value, and in the open state shown in FIG. 12(A),the magnetic sensor 28 outputs the minimum value. In addition, in thestates shown in FIG. 10, and FIG. 15(A)-FIG. 15(C), the magnetic sensor28 does not output the minimum value, but this is regarded as an openstate.

Then, when a rotation is made from FIG. 9(B) and FIG. 9(C) to FIG.12(A), the output value of the magnetic sensor 28 becomes small incorrespondence with the rotation amount. A threshold value in switchingprocessing between the open state and the closed state shall be anoutput value of the magnetic force sensor 28 when rotating is made to alimit position where the position of Felica circuit 24 is within thedisplay range of the sub LCD monitor 34.

Furthermore, in the states shown in FIG. 9(A)-FIG. 9(C), FIG. 10 andFIG. 12(A)-FIG. 12(B), similar to the third embodiment, the assist mark36 shown in FIG. 3(A), the schematic view 38 shown in FIG. 3(B) and thecharacter string shown in FIG. 11 are displayed. In addition, in a casethat the Felica circuit 24 is contained in the position shown in FIG.9(B), in the state in FIG. 12(C) during the control of the assist, thedisplayed contents may be exchanged between the sub LCD monitor 34 andthe main LCD monitor 32.

Referring to FIG. 15(A)-FIG. 15(C) and FIG. 3(A)-FIG. 3(B), in thefourth embodiment, the schematic view 38 schematically represents theoperation keys of the key input device 26 attached to the inner surfaceof the case C2.

In the state shown in FIG. 15(A), the opposite side of the outer surfaceof the case C2 where the receiving sensitivity of the antenna 24 a isretained in good condition becomes the inner surface of the case C2.Accordingly, the position of the antenna 24 a is not included within thedisplay range of the main LCD monitor 32. Thus, the main LCD monitor 32displays the schematic view 38 of the inner surface of the case C2, andfurther displays the assist mark 36 at the position of the antenna 24 awith respect to the inner surface of the case C2.

Similar to the state shown in FIG. 15(A), in the state shown in FIG.15(B), the opposite side of the outer surface of the case C2 where thereceiving sensitivity of the antenna 24 a is retained in good conditionbecomes the inner surface of the case C2. Accordingly, within thedisplay range of the sub LCD monitor 34, the position of the antenna 24a is not included. Thus, the sub LCD monitor 34 displays the schematicview 38 of the inner surface of the case C2, and further displays theassist mark 36 at the at the position of the antenna 24 a with respectto the inner surface of the case C2. Then, the main LCD monitor 32displays the schematic view 38 of the inner surface of the case C2similar to the state shown in FIG. 15(A), and further displays theassist mark 36 at the position of the antenna 24 a with respect to theinner surface of the case C2.

In the open state shown in FIG. 15(C), similar to the state in FIG.15(B), the main LCD monitor 32 and the sub LCD monitor 34 display theschematic view 38 of the inner surface of the case C2, and furtherdisplays the assist mark 36 at the position of the antenna 24 a withrespect to the inner surface of the case C2.

That is, on the opposite side of the inner surface of the case C2corresponding to the schematic view 38 displayed on the main LCD monitor32 and the sub LCD monitor 34, the antenna 24 a exists. Thus, the useris only necessary to make the surface where the receiving sensitivity ofthe antenna 24 a is retained in good condition, that is, the outersurface of the case C2 close to the reader/writer such that the positionof the assist mark 36 displayed on the main LCD monitor 32 and thereader/writer are superimposed with each other.

Additionally, in a case of the closed position and a change of theoutput value of the magnetic sensor 28, the CPU 22 detects the change ofthe position of the antenna 24 a with respect to the main LCD monitor 32from the output value of the magnetic sensor 28, and moves the assistmark 36 on the basis of the detection result. For example, in a casethat the value of the magnetic sensor 28 continuously changes, theposition of the antenna 24 a with respect to the main LCD monitor 32similarly changes, so that the assist mark 36 is displayed on the mainLCD monitor 32 like animation.

That is, in a case that a rotation is made from the state shown in FIG.12(B) to the state shown in FIG. 10, in the closed state, the CPU 22gradually moves the position of the assist mark 36. Then, the user isonly necessary to make the surface where the receiving sensitivity ofthe antenna 24 a is retained in good condition, that is, the bottomsurface of the case C2 close to the reader/writer in correspondence withthe gradually moved position of the assist mark 36 such that theposition of the assist mark 36 displayed on the main LCD monitor 32 andthe reader/writer are superimposed with each other.

The CPU 22 executes a plurality of tasks including the Felica modecontrolling task shown in FIG. 4 and the assist controlling task shownin FIG. 16 and in FIG. 17 in parallel. Here, the control programcorresponding to these tasks is stored in the flash memory 20, and theimage data of the assist mark 36 and schematic view 38 shown in FIG.3(A)-FIG. 3(C) and the letter data of the character string shown in FIG.11 are stored in the flash memory 20, and read from the flash memory 20in correspondence with the processing of the assist controlling task.

The processing of the Felica mode controlling task of the fourthembodiment is the same as that of the first embodiment, and is thusomitted.

Referring to FIG. 16 and FIG. 17, the processing of the assistcontrolling task is explained. In a step S61, it is determined whetheror not the output value of the magnetic sensor 28 is a minimum value ora maximum value. The determination result indicates “YES” in the statesshown in FIG. 9(A)-FIG. 9(C), and indicates “NO” in the states shown inFIG. 10 and FIG. 12(A)-FIG. 12(B), FIG. 15(A)-FIG. 15(C).

If “YES” in the step S61, the change of the output value of the magneticsensor 28 is regarded as a rotation of the case C1 by the hingemechanism H2, and the processing in steps 43-S59 is performed on thehinge mechanism H2 similar to the third embodiment. Then, aftercompletion of the processing in the step S49 or the step S53, theprocess returns to the step S61. In addition, after completion of thestep S57 or the step S59, the process returns to the step S61.Alternatively, if “NO” in the step S61, this is regarded as a rotationof the case C1 by the rotating mechanism K, and the process proceeds toa step S63. In the step S63, in the states shown in FIG. 15(A) and FIG.15(B), the main LCD monitor 32 displays the schematic view 38 of theinner surface of the case C2, and further displays the assist mark 36 atthe position of the antenna 24 a with respect to the inner surface ofthe case C2. In the state shown in FIG. 15(C), the schematic view 38 ofthe top surface of the case C2 is displayed on the sub LCD monitor 34,and the assist mark 36 is further displayed at the position of theantenna 24 a with respect to the top surface of the case C2.

In a following step S65, it is determined whether or not there is thesub LCD monitor 34. The determination result indicates “YES” in thestate shown in FIG. 15(B) or FIG. 15(C), and “NO” in the state shown inFIG. 15(A). If “YES” in the step S65, the process proceeds to a step S67to determine whether or not the output value of the magnetic sensor 28is equal to or more than the threshold value. If “NO” here, the outputvalue of the magnetic sensor 28 is equal to or less than the thresholdvalue, resulting in the open state shown in FIG. 15(B) and FIG. 15(C).Then, the process proceeds to a step S69. In the state shown in FIG.15(B), the schematic view 38 of the top surface of the case C2 isdisplayed on the sub LCD monitor 34, and the assist mark 36 is furtherdisplayed at the position of the antenna 24 a with respect to the topsurface of the case C2. In the state shown in FIG. 15(C), the schematicview 38 of the top surface of the case C2 is displayed on the main LCDmonitor 32, and the assist mark 36 is further displayed at the positionof the antenna 24 a with respect to the top surface of the case C2.

In a following step S71, it is determined whether or not the outputvalue of the magnetic sensor 28 changes. If “YES” here, the processreturns to the step S61 in order to determine again whether or not theoutput value of the magnetic sensor 28 is the minimum value or themaximum value. If “NO” here, the process returns to the step S69. In thestate shown in FIG. 15(B), the schematic view 38 of the top surface ofthe case C2 is displayed on the sub LCD monitor 34, and the assist mark36 is further displayed at the position of the antenna 24 a with respectto the top surface of the case C2. In a case of the state shown in FIG.15(C), the schematic view 38 of the top surface of the case C2 isdisplayed on the main LCD monitor 32, and the assist mark 36 iscontinuously displayed at the position of the antenna 24 a with respectto the top surface of the case C2. Furthermore, if “YES” in the stepS67, the output value of the magnetic sensor 28 is equal to or more thanthe threshold value, resulting in the closed state. Then, the processproceeds to a step S73 to specify the position of the Felica circuit 24with respect to the main LCD monitor 32 from the output value of themagnetic sensor 28. In a following step S75, on the basis of theposition of the Felica circuit 24 specified in the step S73, the assistmark 36 is displayed at the position of the Felica circuit 24 specifiedin the step S73 on the main LCD monitor 32.

In a following step S77, it is determined whether or not the outputvalue of the magnetic sensor 28 changes. If “YES” here, the processreturns to the step S61 in order to determine again whether the outputvalue of the magnetic sensor 28 is the minimum value or the maximumvalue. If “NO” here, the process returns to the step S73 to repeat theprocessing in the steps S73-S77, so that the assist mark 36 iscontinuously displayed at the position of the Felica circuit 24specified in the step S73.

Additionally, in a case of the closed state, when the case C1 slideswith respect to the case C2, the processing in the step S67 and stepsS73-S77 are repeated. Thus, the position of the antenna 24 a withrespect to the main LCD monitor 32 changes as well, so that the assistmark 36 is displayed on the sub LCD monitor 34 like animation.

It should be noted that in the fourth embodiment, as in Japanese PatentApplication Laid-Open No. 2001-156893 or Japanese Patent ApplicationLaid-Open No. 2003-338866, the main LCD monitor 32 may be moved withrespect to the main surface of the case C1. Furthermore, in place of thehinge mechanism H2, the hinge mechanism H1 may be used.

Fifth Embodiment

In a fifth embodiment, a straight mobile communication terminal 10 needsnot to adopt the magnetic sensor 28 in the configuration shown in FIG.18. Furthermore, the fifth embodiment is the same in the processing ofthe Felica mode controlling task in FIG. 4 used for the explanation ofthe first embodiment, and therefore, in the explanation of the fifthembodiment, the explanation of FIG. 4 is omitted.

Referring to FIG. 18, the mobile communication terminal 10 in the fifthembodiment is configured to remove the magnetic sensor 28 and the magnet30 in the mobile communication terminal 10 from the first embodiment.

Referring to FIG. 19(A)-FIG. 19(C), the mobile communication terminal 10of the fifth embodiment configured with only the case C1 contains theFelica circuit 24 at a position shown in FIG. 19(B) or FIG. 19(C). Thekey input device 26 is attached to the case C1 such that the operationkeys are exposed from a main surface of the case C1. The main LCDmonitor 32 is attached to the case C1 such that the monitor screen isexposed from the main surface of the case C1. The Felica circuit 24 iscontained in the case C1 such that the antenna 24 a retains goodreceiving sensitivity on the other surface of the case C1.

Referring to FIG. 19(A)-FIG. 19(C) and FIG. 3(A)-FIG. 3(B), theschematic view 38 schematically represents the operation keys of the keyinput device 26 attached to the main surface of the case C1.

In the states shown in FIG. 19(A) and FIG. 19(B), the opposite side ofthe case C1 where the receiving sensitivity of the antenna 24 a retainsin good condition becomes the main surface of the case C1 attached withthe main LCD monitor 32. Accordingly, the position of the antenna 24 ais included within the display range of the main LCD monitor 32. Thus,the main LCD monitor 32 displays the assist mark 36 at the position ofthe antenna 24 a with respect to the display range of the main LCDmonitor 32.

That is, on the opposite side of the assist mark 36 displayed on themain LCD monitor 32, the antenna 24 a exists. Then, the user is onlynecessary to make the surface where the receiving sensitivity of theantenna 24 a is retained in good condition, that is, the other surfaceof the case C1 close to the reader/writer such that the position of theassist mark 36 displayed on the main LCD monitor 32 and thereader/writer are superimposed with each other.

In the state shown in FIG. 19(A) and FIG. 19(C), the opposite side ofthe other surface of the case C1 where the receiving sensitivity of theantenna 24 a is retained in good condition becomes the main surface ofthe case C1. However, on the display range of the main LCD monitor 32,the position of the antenna 24 a is not included. Thus, the main LCDmonitor 32 displays the schematic view 38 of the main surface of thecase C1, and further displays the assist mark 36 at the position of theantenna 24 a with respect to the main surface of the case C1.

That is, on the opposite side of the main surface of the case C1corresponding to the schematic view 38 displayed on the main LCD monitor32, the antenna 24 a exists. Thus, the user is only necessary to makethe surface where the receiving sensitivity of the antenna 24 a isretained in good condition, that is, the other surface of the case C1close to the reader/writer such that the position of the assist mark 36and the reader/writer are superimposed with each other on the mainsurface of the case C1 corresponding to the schematic view 38 displayedon the main LCD monitor 32.

The CPU 22 executes in parallel a plurality of tasks including theFelica mode controlling task shown in FIG. 4 and an assist controllingtask shown in FIG. 20. The control program corresponding to these tasksis stored in the flash memory 20, and the image data of the assist mark36 and the schematic view 38 shown in FIG. 3(A) and FIG. 3(B) are storedin the flash memory 20 and read from the flash memory 20 incorrespondence with the processing of the assist controlling task.

The processing of the Felica mode controlling task in the fifthembodiment is the same as that of the first embodiment, and therefore,is omitted.

Referring to FIG. 20, the processing of the assist controlling task isexplained. In a step S79, it is determined whether or not the assistmark 36 can be displayed on the main LCD monitor 32. If “YES” here, thismeans the states shown in FIG. 19(A) and FIG. 19(B), and therefore, theprocess proceeds to a step S81. Then, the assist mark 36 is displayed onthe main LCD monitor 32 at the position of the antenna 24 a with respectto the main LCD monitor 32.

Furthermore, if “NO” in the step S79, this means the states shown inFIG. 19(A) and FIG. 19(C), and therefore, the process proceeds to a stepS83. Then, the schematic view 38 of the main surface of the case C1 isdisplayed on the main LCD monitor 32, and the assist mark 36 is furtherdisplayed at the position of the antenna 24 a with respect to the mainsurface of the case C1.

After completion of the processing in the step S81 or the step S83, theprocess returns to the step S79 in order to determine whether or not theassist mark 36 can be displayed on the main LCD monitor 32 again.

It should be noted in the fifth embodiment, a flip-typed mobilecommunication terminal 10 which hides the key input device 26 under acover may be used.

It should be noted that in the first embodiment-fifth embodiment, themagnetic sensor 28 and the magnet 30 are adopted for switchingprocessing between the open state and the closed state, but acontactless switch utilizing infrared rays, etc. and a contact switchutilizing a mechanical switch may be used.

Furthermore, a movement amount sensor for detecting an amount ofmovement of the first case with respect to the second case may befurther provided to the processing of detecting changes of the positionof the Felica circuit 24 with respect to the main LCD monitor 32.

Additionally, the schematic view 38 is the top surface of the case C2,but may be changed depending on the face where the Felica circuit 24 iscontained.

Moreover, as the communication system of the mobile communicationterminal 10, it is needless to say that a PHS system, a TDMA system, anda W-CDMA system may be adopted other than the CDMA system.

Although the present invention has been described and illustrated indetail, it is clearly understood that the same is by way of illustrationand example only and is not to be taken by way of limitation, the spiritand scope of the present invention being limited only by the terms ofthe appended claims.

The invention claimed is:
 1. A communication terminal comprising: acase; a display attached to said case; an internal antenna for NearField Communication contained in said case; a determiner configured todetermine whether or not an operation for using Near Field Communicationis performed; and a displayer configured to display an assist mark onsaid display when it is determined by said determiner that an operationfor using Near Field Communication is performed, the assist markrepresenting a position of said internal antenna with respect to saiddisplay.
 2. A communication terminal according to claim 1, wherein saidcase comprises a first case and a second case, said first case beingmovably coupled to the second case and configured to shift with respectto said second case, further comprising: a sensor that detects a stateof said first case with respect to said second case and providing anoutput, wherein said determiner performs a determination on the basis ofthe output provided by said sensor.
 3. A communication terminalaccording to claim 2, wherein said first displayer moves said firstassist mark on the basis of a change of the position of said antenna. 4.A communication terminal according to claim 2, wherein said displaycomprises a first display, said first display is attached to one mainsurface of said first case, and said antenna is contained in said secondcase.
 5. A communication terminal according to claim 4, wherein saidfirst case comprises another main surface, said display furthercomprises a second display, and said second display is attached to theother main surface of said first case.
 6. A communication terminalaccording to claim 5, further comprising a character string displayerthat displays on said second display a character string to prompt a userto confirm said first display.
 7. A communication terminal according toclaim 1, wherein said displayer further comprises a second displayerthat displays a second assist mark representing the position of saidantenna with respect to said case on said display in a case that thedetermination result by said determiner is negative.